New Nikon firmware updates for the D850, D750, D500, D7500, D7200, D5600, D5300, D3400, B500 and P900 cameras - Nikon Rumors
How to Update Firmware on Nikon DSLR
Nikon: New Firmware Update Version 1.01 for Both Cameras D3300 (2016-01-26) and D5300 (2016-01-27): Improvements & Support for Lenses AF-P DX NIKKOR 18–55mm f/3.5–5.6G VR and AF-P DX NIKKOR 18–55mm f/3.5–5.6G –
Nikon released new firmware updates for the D3100, D3200, D5100, D5200 and P7700 cameras - Nikon Rumors
How to update firmware and lens data on Nikon DSLR. Nikon D5300/ D5500 - YouTube
Nikon firmware update for D850, D750, D500, D7500, D7200, D5600, D5300, D3400, B500 and P900 - Daily Camera News
How to update Firmware of Nikon D5300 or any other Nikon DSLR. Both 'C' and 'L'. - YouTube
How Update Nikon D5300 Firmware?|Check|format SD crad - YouTube
Nikon | Download center | D5300
Nikon D5300 Camera Software and Firmware Download | Camera Forums